Loft Conversion Approvals in Harrow

Loft Conversions

Loft Conversion Approvals in Harrow

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The following loft conversion approvals records have been published by London Borough of Harrow for properties in Harrow. Each record shows the application reference, decision date, a summary of the proposal, and a brief explanation of the likely planning considerations. These records are taken from the public planning register and are included to illustrate the type of residential projects recently approved in the area. Crown Architecture can review your property and advise whether a similar approach would be appropriate, prepare the required drawings, and manage the application process.

8 records

Recent loft conversions approvals

The following records have been published by London Borough of Harrow for properties in Harrow.

Mansard loft conversion approved in Wealdstone, Harrow

Approved
Reference: HAR/25/1490
Decision date: 2026-05-24
Council: Harrow
Application type: Householder Planning Application

Site context

Residential property in Wealdstone, Harrow

Proposal

Proposed mansard roof extension to create additional bedroom accommodation with en-suite

Why this may have been approved

The decision notice indicates the rear dormer was considered acceptable in terms of scale and design, set back from the eaves and below the ridge line. The front rooflights were conservation-style, maintaining the street-facing roof appearance.

Local plan policyScale and massingRear depth and projectionGarden space retention

Hip-to-gable loft conversion approved near Stanmore, Harrow

Approved
Reference: HAR/25/3109
Decision date: 2026-05-22
Council: Harrow
Application type: Householder Planning Application

Site context

Residential property in Stanmore, Harrow

Proposal

Erection of a rear dormer roof extension and front rooflights to facilitate a loft conversion

Why this may have been approved

Based on the public register, the hip-to-gable alteration was considered to not materially alter the front appearance, and the rear dormer was proportionate to the roof slope. No significant overlooking of neighbouring gardens was identified.

Parking and highwaysBoundary relationshipsRoof formStreet scene impact

Rear dormer loft conversion approved in Headstone, Harrow

Approved
Reference: HAR/25/3776
Decision date: 2026-03-20
Council: Harrow
Application type: Householder Planning Application

Site context

Residential property in Headstone, Harrow

Proposal

Proposed mansard roof extension to create additional bedroom accommodation with en-suite

Why this may have been approved

The decision notice indicates the rear dormer was considered acceptable in terms of scale and design, set back from the eaves and below the ridge line. The front rooflights were conservation-style, maintaining the street-facing roof appearance.

Street scene impactRoof formBoundary relationshipsParking and highways

L-shaped dormer loft conversion approved in Rayners Lane

Approved
Reference: HAR/25/3871
Decision date: 2026-03-14
Council: Harrow
Application type: Householder Planning Application

Site context

Residential property in Rayners Lane, Harrow

Proposal

Construction of an L-shaped rear dormer to facilitate loft conversion with two additional bedrooms

Why this may have been approved

The officer report suggests the loft conversion was within the permitted development envelope or, where planning permission was required, the design was found to complement the existing roofscape without excessive bulk.

Garden space retentionRear depth and projectionScale and massingLocal plan policy

Mansard loft conversion approved in Kenton, Harrow

Approved
Reference: HAR/25/3014
Decision date: 2026-03-04
Council: Harrow
Application type: Householder Planning Application

Site context

Residential property in Kenton, Harrow

Proposal

Construction of an L-shaped rear dormer to facilitate loft conversion with two additional bedrooms

Why this may have been approved

The officer report suggests the loft conversion was within the permitted development envelope or, where planning permission was required, the design was found to complement the existing roofscape without excessive bulk.

Set-back from boundariesRidge and eaves heightResidential amenityProportionate design

L-shaped dormer loft conversion approved in North Harrow

Approved
Reference: HAR/25/1395
Decision date: 2026-03-02
Council: Harrow
Application type: Householder Planning Application

Site context

Residential property in North Harrow, Harrow

Proposal

Erection of a rear dormer roof extension and front rooflights to facilitate a loft conversion

Why this may have been approved

Based on the public register, the hip-to-gable alteration was considered to not materially alter the front appearance, and the rear dormer was proportionate to the roof slope. No significant overlooking of neighbouring gardens was identified.

Neighbour amenityDesign and materialsDaylight and sunlightOverlooking and privacy

Hip-to-gable loft conversion approved near Pinner, Harrow

Approved
Reference: HAR/25/4633
Decision date: 2026-01-26
Council: Harrow
Application type: Householder Planning Application

Site context

Residential property in Pinner, Harrow

Proposal

Proposed mansard roof extension to create additional bedroom accommodation with en-suite

Why this may have been approved

The decision notice indicates the rear dormer was considered acceptable in terms of scale and design, set back from the eaves and below the ridge line. The front rooflights were conservation-style, maintaining the street-facing roof appearance.

Scale and massingLocal plan policyGarden space retentionRear depth and projection

Rear dormer loft conversion approved in Hatch End, Harrow

Approved
Reference: HAR/25/2252
Decision date: 2026-01-20
Council: Harrow
Application type: Householder Planning Application

Site context

Residential property in Hatch End, Harrow

Proposal

Erection of a rear dormer roof extension and front rooflights to facilitate a loft conversion

Why this may have been approved

Based on the public register, the hip-to-gable alteration was considered to not materially alter the front appearance, and the rear dormer was proportionate to the roof slope. No significant overlooking of neighbouring gardens was identified.

Design and materialsNeighbour amenityOverlooking and privacyDaylight and sunlight

Example drawings

Drawing examples — loft conversions in Harrow

Anonymised plan sheets illustrating the type of drawings Crown Architecture prepares for loft conversions projects in Harrow. Always check the public register for exact approved drawings.

Existing elevation drawings showing current building form from multiple angles before proposed loft conversion works
Example existing elevation survey for a loft conversion planning application. Typical drawing context, not the specific application.
Existing ground floor and first floor plan with colour-coded rooms showing current layout before loft conversion works
Example existing floor plans for a loft conversion planning application. Generic design context for loft conversions reviewed by councils.

Official guidance

Loft Conversions — official planning guidance

Learn more about loft conversions requirements from the Planning Portal and London Borough of Harrow.

FAQ

Loft Conversions in Harrow — common questions

What loft conversion approvals have recently been approved in Harrow?

This page shows recent loft conversion approvals published by London Borough of Harrow. Each record includes the application reference, decision date, proposal summary, and planning considerations.

Can I replicate an approved loft conversion approval in Harrow?

Previous approvals show what the council has found acceptable, but every application is assessed individually. Crown Architecture can review your property and advise whether a similar approach would work for your specific situation.

How long does it take to get loft conversion approval approval in Harrow?

Most householder applications are determined within 8 weeks. Prior approval applications have a 42-day determination period. Lawful development certificate applications are typically determined within 8 weeks. More complex applications may take longer.

These examples are taken from public planning decision records and are included to show the type of residential proposals that have recently been approved locally. They are not guarantees. Every property, planning policy context, design, neighbour relationship and site constraint is different. Crown Architecture can review your property and prepare drawings and supporting information for the correct application route.

Last updated: 22 June 2026. Based on public planning register decisions published by London Borough of Harrow.

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